Loading time of Interactive Videos in Course Presentation

Hello,

I think I know the answer for this question but I would like to get a confirmation from your side because I am not really sure about this. I have a course presentation with 4 slides and on every slide there is an interactive video. Each video is around 200MB large and in some cases I have to wait a few seconds before my interactions within the video are shown or the video is loaded.

Does this have to do with the size of the video which seems to big and therefore the loading process needs more time than in usual cases?